gas piston? Where did I miss that?

Ya caught me. My mind went completely blank when I was typing that. Could NOT remember the correct terminology for the AR (bolt carrier?) and so just typed "gas piston" instead. The AR doesn't have a gas piston, per se. It uses a direct gas impingement system, IIRC. Whatever the dang thing is called, it IS sensitive to fluctuating gas pressures and so the rest of my post is accurate.

Was wondering, since I've not done much AR work in the last 2 years or so was wondering if they'd figured a way to meter it per shot.

Had those CRS moments too, older i get more often it happens, IIRC....

Gotta remember to order M58 sooner or later too!!

Jeff